Fix syntax error: replace multi-line f-strings with variables in stream_anthropic

app.py

@@ -282,14 +282,15 @@ async def stream_anthropic(ollama_stream, original_model: str):
                 
                 if content:
                     # Send text_delta
-                    yield f"data: {json.dumps({
+                    content_block_delta_data = {
                         'type': 'content_block_delta',
                         'index': 0,
                         'delta': {
                             'type': 'text_delta',
                             'text': content
                         }
-                    })}\n\n"
+                    }
+                    yield f"data: {json.dumps(content_block_delta_data)}\n\n"
             except json.JSONDecodeError:
                 continue